External shell for a trailer for hauling viscous liquids and complementing products



FIG. 1 is a plan view of an external shell of a trailer for hauling viscous liquids and complementing products showing our new design;

FIG. 2 is a right side elevational view thereof;

FIG. 3 is a left side elevational view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a front elevational view thereof;

FIG. 6 is a rear elevational view thereof;

FIG. 7 is a plan view of an external shell of a trailer for hauling viscous liquids and complementing products showing a second embodiment of our design;

FIG. 8 is a right side elevational view of FIG. 7;

FIG. 9 is a bottom plan view of FIG. 7;

FIG. 10 is a left side elevational view of FIG. 7;

FIG. 11 is a front elevational view of FIG. 7; and,

FIG. 12 is a rear elevational view of FIG. 7.

The broken line showing of the trailer tires is for illustration purposes only and forms no part of the claimed design. 

The ornamental design for an external shell of a trailer for hauling viscous liquids and complementing products as shown and described. 